NTSB30120CT-1G

Overview

The NTSB30120CT-1G is a dual Schottky power rectifier manufactured by onsemi, featuring a common cathode configuration. It utilizes silicon technology and is housed in an I2PAK (TO-247) through-hole package with three terminals. The device supports a maximum continuous forward current of 30 A and a repetitive peak reverse voltage of 120 V. Key electrical characteristics include a typical forward voltage of 1.18 V at rated current and a maximum reverse leakage current of 800 uA. It withstands a non-repetitive peak forward surge current of 60 A and operates within a junction temperature range of -40°C to +150°C.

Feature Summary

• Dual Schottky barrier rectification with common cathode topology for efficient power conversion
• High thermal stability enabling operation up to 150°C junction temperature
• Low forward voltage drop characteristic minimizing conduction losses
• Robust surge current handling capability for transient protection

Applications

• DC-DC converter output rectification
• Free-wheeling diodes in inductive load circuits
• Power supply input rectification stages

Procurement Notes

Verify the specific suffix '-1G' against the manufacturer's latest datasheet to confirm compliance with RoHS and REACH directives. Ensure the I2PAK footprint matches the target PCB design. Confirm availability status as older series components may be subject to discontinuation or lifecycle changes. Cross-reference pinout configurations to prevent installation errors during assembly.

Selection Notes

Select this component when a dual common cathode Schottky rectifier is required for medium-power applications. The I2PAK package offers superior thermal dissipation compared to smaller surface-mount options. Evaluate the 30 A current rating against peak load requirements to ensure adequate margin. Consider the 120 V voltage rating relative to the system's maximum operating voltage to prevent breakdown.

Part Context

This part belongs to onsemi's NTSB series of high-current Schottky rectifiers. It shares functional similarities with the NTSV30120CTG but differs in packaging, utilizing the larger I2PAK form factor for enhanced heat sinking. It serves as a discrete alternative to integrated power modules in standard industrial and consumer power electronics designs.

Replacement Considerations

The NTST30120CTG is a documented equivalent from the same manufacturer, offering identical electrical specifications but in a TO-220AB package. Verify mechanical compatibility before substitution due to the difference in package dimensions and mounting hole spacing.